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Napa Co., California, USA

StandardDetailedBy ChemistryMineral Photos (4)Site Photos (2)Search GoogleMineral Report for Region

Mineral list contains entries from the region specified including sub-localities

Group 1 - Elements
  		• Copper1.AA.05
    Cu
  		• Gold1.AA.05
    Au
      var: Electrum1.AA.05
    (Au, Ag)
  		• Mercury1.AD.05
    Hg
  		• Sulphur1.CC.05
    S
     
    8
    Group 2 - Sulphides and Sulfosalts
  		• Acanthite2.BA.35
    Ag
     
    2
    		S
  		• Arsenopyrite2.EB.20
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
  		• Cinnabar2.CD.15a
    HgS
  		• Jamesonite2.HB.15
    Pb
     
    4
    		FeSb
     
    6
    		S
     
    14
  		• Marcasite2.EB.10a
    FeS
     
    2
  		• Metacinnabar (TL)2.CB.05a
    HgS
  		• Miargyrite2.HA.10
    AgSbS
     
    2
  		• Millerite2.CC.20
    NiS
  		• Pyrargyrite2.GA.05
    Ag
     
    3
    		SbS
     
    3
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Skutterudite
    var: Smaltite    		2.EC.05
    (Co,Fe,Ni)As
     
    2
  		• Stibnite2.DB.05
    Sb
     
    2
    		S
     
    3
  		• Tiemannite2.CB.05a
    HgSe
    Group 3 - Halides
  		• Calomel3.AA.30
    Hg
     
    2
    		Cl
     
    2
  		• Chlorargyrite3.AA.15
    AgCl
    Group 4 - Oxides and Hydroxides
  		• Chromite4.BB.05
    FeCr
     
    2
    		O
     
    4
  		• Crednerite4.AB.05
    CuMnO
     
    2
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Melanophlogite4.DA.25
    46SiO
     
    2
    		·6(N
     
    2
    		,CO
     
    2
    		)·2(CH
     
    4
    		,N
     
    2
    		)
  		• Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
      var: Lemon Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
      var: Opaline4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
      var: Prase Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
      var: Precious Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
  		• Pyrolusite4.DB.05
    MnO
     
    2
  		• Quartz4.DA.05
    SiO
     
    2
      var: Chert4.DA.05
    SiO
     
    2
      var: Prase4.DA.05
    SiO
     
    2
  		• Sénarmontite4.CB.50
    Sb
     
    2
    		O
     
    3
    Group 5 - Nitrates and Carbonates
  		• Aragonite5.AB.15
    CaCO
     
    3
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Dolomite5.AB.10
    CaMg(CO
     
    3
    		)
     
    2
  		• Hydromagnesite5.DA.05
    Mg
     
    5
    		[(CO
     
    3
    		)
     
    4
    		(OH)
     
    2
    		] · 4H
     
    2
    		O
  		• Magnesite5.AB.05
    MgCO
     
    3
  		• Siderite5.AB.05
    FeCO
     
    3
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Alunogen7.CB.45
    Al
     
    2
    		(SO
     
    4
    		)
     
    3
    		·17H
     
    2
    		O
  		• Ammonioalunite7.BC.10
    (NH
     
    4
    		)Al
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
  		• Baryte7.AD.35
    BaSO
     
    4
  		• Botryogen7.DC.25
    MgFe
    3+
     
    		[OH|(SO
     
    4
    		)
     
    2
    		] · 7H
     
    2
    		O
  		• Copiapite7.DB.35
    Fe
    2+
     
    		Fe
    3+
    4
    		[OH|(SO
     
    4
    		)
     
    3
    		]
     
    2
    		 · 20H
     
    2
    		O
      var: Knoxvillite7.DB.35
    Fe
    2+
     
    		Fe
    3+
    4
    		[OH|(SO
     
    4
    		)
     
    3
    		]
     
    2
    		 · 20H
     
    2
    		O
  		• Coquimbite7.CB.55
    Fe
     
    2
    		(SO
     
    4
    		)
     
    3
    		·9H
     
    2
    		O
  		• Epsomite7.CB.40
    MgSO
     
    4
    		·7H
     
    2
    		O
  		• Fibroferrite7.DC.15
    Fe
    3+
     
    		[OH|SO
     
    4
    		] · 5H
     
    2
    		O
  		• Hohmannite7.DB.30
    Fe
    3+
    2
    		[O|(SO
     
    4
    		)
     
    2
    		] · 8H
     
    2
    		O
  		• Magnesiocopiapite7.DB.35
    MgFe
    3+
    4
    		[OH|(SO
     
    4
    		)
     
    3
    		]
     
    2
    		 · 20H
     
    2
    		O
  		• Melanterite7.CB.35
    FeSO
     
    4
    		·7H
     
    2
    		O
  		• Mendozite7.CC.15
    NaAl(SO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
  		• Morenosite7.CB.40
    NiSO
     
    4
    		·7H
     
    2
    		O
  		• Redingtonite (TL)7.CB.85
    (Fe
    2+
     
    		,Mg,Ni)(Cr,Al)
     
    2
    		(SO
     
    4
    		)
     
    4
    		·22H
     
    2
    		O
  		• Voltaite7.CC.25
    K
     
    2
    		Fe
    2+
    5
    		Fe
    3+
    3
    		Al[SO
     
    4
    		]
     
    12
    		 · 18H
     
    2
    		O
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Erythrite8.CE.40
    Co
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    Group 9 - Silicates
  		• Buddingtonite9.FA.30
    (NH
     
    4
    		)[AlSi
     
    3
    		O
     
    8
    		]
  		• Prehnite9.DP.20
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
  		• Saponite9.EC.45
    Ca
     
    0.25
    		(Mg,Fe)
     
    3
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Unclassified Minerals
  		• 'Aragotite'-
    Hydrocarbon
  		• 'Chalcedony'-
      'var: Myrickite'-
  		• 'Chlorite Group'-
  		• 'Garnet Group'-
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
  		• Limonite-
    FeO(OH)·nH
     
    2
    		O
  		• 'Napalite'-
    C
     
    3
    		H
     
    4
  		• 'Obsidian'-
  		• 'Olivine'-
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
  		• 'Psilomelane'-
  		• 'Pumpellyite'-
  		• 'Serpentine Group'-
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O


    72 entries listed. 59 valid minerals.

    Localities in this Region:
    USA
     
    • California
      • Napa Co.
        • Calistoga District (Silverado District)
            • Palisades Range
        • Knoxville Quicksilver
        • Lake Berryessa
            • Calistoga District (Silverado District)
              • Calistoga
            • Middletown area
            • Pope Valley
              • Detert Reservoir area
        • Monticello
        • Napa Valley
        • Pope Valley
        • St. Helena area

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in California, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 26th Nov 2009 11:04:46